Preliminary heat-capacity measurements of 2D solid 3He adsorbed on graphite preplated with 4He

Yosuke Matsumoto, S. Murakawa, D. Tsuji, C. Bäuerle, H. Kambara, Hiroshi Fukuyama

研究成果: Article査読

1 被引用数 (Scopus)


We describe preliminary results of heat capacity measurements of the 4/7 phase in two dimensional 3He adsorbed on graphite preplated with a 4He monolayer in a temperature range between 0.17 and 20 mK. In zero magnetic field, we observed a double-peak structure similar to that reported previously for the same phase in a different system (3 He/3 He/gr) in which the gapless quantum spin-liquid ground state is proposed. The exchange interaction deduced from the high temperature data is by a factor of 30% smaller than the previous one, presumably because of the smaller lattice constant for the 3He/4He/gr system. The present result provides strong evidence that such a peculiar temperature dependence of heat capacity is characteristic of the 4/7 phase. Application of magnetic fields up to 0.65 T on this phase does not seem to change appreciably the higher temperature broad peak at around 1.4 mK.

ジャーナルJournal of Low Temperature Physics
出版ステータスPublished - 2004 1

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学


「Preliminary heat-capacity measurements of 2D solid <sup>3</sup>He adsorbed on graphite preplated with <sup>4</sup>He」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。